复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (4): 143-152.DOI: 10.19936/j.cnki.2096-8000.20250428.018

• 工程应用 • 上一篇    

玻璃纤维-钢板增强复合材料电池包上盖性能研究

王居闯1, 曹清林1*, 邱睿1, 任明伟2, 郭平安3   

  1. 1.江苏理工学院 机械工程学院,常州 213001;
    2.北京机科国创轻量化科学研究院有限公司 德州分公司,德州 253000;
    3.中机精密成形产业技术研究院(安徽)股份有限公司,芜湖 241000
  • 收稿日期:2023-12-07 出版日期:2025-04-28 发布日期:2025-06-03
  • 通讯作者: 曹清林(1963—),男,博士,教授,硕士生导师,主要从事机械设计、复合材料方面的工作,cql@jsut.edu.cn。
  • 作者简介:王居闯(1996—),男,硕士研究生,主要从事复合材料的轻量化设计与分析方面的工作。

The performance study of glass fiber-reinforced steel plate composite materials for battery pack lid

WANG Juchuang1, CAO Qinglin1*, QIU Rui1, REN Mingwei2, GUO Ping’an3   

  1. 1. School of Mechanical Engineering, Jiangsu University of Technology, Changzhou 213001, China;
    2. Dezhou Branch, Beijing Jike Guochuang Lightweighting Scientific Research Institute Co., Ltd., Dezhou 253000, China;
    3. China Manchinery Industy Technology Research Institute of Precision Forming, Wuhu 241000, China
  • Received:2023-12-07 Online:2025-04-28 Published:2025-06-03

摘要: 为减轻车身重量,对金属电池包上盖进行玻璃纤维复合材料轻量化设计。采用黑阻燃玻璃纤维方格布预浸料和DP590钢板一体模压成型工艺,通过试验及微观分析优选酸碱清洗、喷砂、电泳涂层处理为钢板改性最优方案。对于总厚度为1.5 mm的玻璃纤维-钢板增强复合材料设计9组正交试验,采用仿真分析与试验测试,分别对9组不同的玻璃纤维-钢板增强复合材料进行弯曲、拉伸仿真分析和测试试验,得到了复合材料力学性能,两种方法的最大相对偏差为1.49%,仿真结果可靠。对正交试验结果进行极差分析,确定了使结合强度达到最佳的工艺参数组合,即模具温度为150 ℃,模压压力为12 MPa,钢板厚度为0.8 mm,钢板复合材料结构为1+1。试验样件的剥离强度、吸水性、阻燃、热变形温度、耐电压均满足设计要求,并且减重39.4%,满足轻量化要求。

关键词: 电池包, 玻璃纤维, 钢板, 轻量化, 复合材料

Abstract: To reduce the weight of the vehicle body, a lightweight design was applied to the metal battery pack lid using glass fiber composite materials. The process involved utilizing black flame-retardant glass fiber grid cloth prepreg and DP590 steel plate integrated molding technology. Through experiments and microscopic analysis, acid-base cleaning, sandblasting, and electrophoretic coating were identified as the optimal modifications for the steel plate. Nine orthogonal experiments were designed for glass fiber-steel plate reinforced composite materials with a total thickness of 1.5 mm. Simulation analysis and experimental testing were conducted for the nine different combinations, focusing on bending and tensile simulations as well as testing experiments. The mechanical properties of the composite materials were obtained, with a maximum relative deviation of 1.49% between simulation and testing results, indicating the reliability of the simulation. Through extreme difference analysis of the orthogonal experiment results, the optimal process parameter combination was determined to achieve the best bonding strength. The recommended parameters include a mold temperature of 150 ℃, molding pressure of 12 MPa, steel plate thickness of 0.8 mm, and a 1+1 steel plate composite structure. The tested samples met design requirements for peel strength, water absorption, flame resistance, heat deformation temperature, and voltage resistance. The weight reduction achieved was 39.4%, meeting the requirements for lightweight design.

Key words: battery pack, glass fiber, steel plate, lightweight, composite materials

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